Electric heater



Oct. 30, 1928.

1,689,822 G. B. GALLUP I ELECTRIC HEATER Filed May 1928 2 Sheets-Sheet 1 v arrow 5oz George B. Gall/up,

attain/c141 Oct, 30, 1928.

George .B- Gallup,

Patented Oct. 30, 1928.

. TUNITEDWSTIATES ononcn B. GALLtiP, or nnannlvroiv, FLORIDA, AssIGivon r L EAGH -GALLUP MANU- rncronnve COMPANY? or nnannnroiv,

3 1,689,822 PATENT foFFlc FLORIDA, A coRPoR 'rIoN'o'F FLORIDA.

ELECTRIC HEA ER.

Application filed Mayfl,

This invention relates to electric heaters and haszfor oneiofits objects to provide a heater of this character which will be simple in construction, comparatively inexpensive to manufacture and more eflicient in use than those which have been heretofore proposed.

A further object of the invention is to pro vide an electric resistance heater in which one 1 or more heat-conducting'and radiating rings which carries the conductors 9. The socket V or members are arranged in proximity to the electricresistance element whereby heat from the latter is transmitted to such rings or members which in turn serve to heat the. air surrounding them whereby the efiiciency of the heater is greatly increased.

Viththe above and other objects in view' which will appear as the description proceeds the invention consists of the novel details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the appended claims.

Referring to the accompanying drawings forming a part oi? this specificationin which like reference characters designate like parts in all views: v

Fig. 1 is a perspective view of a heater constructed in accordance with the present invention.

Fig. 2 is a centralvertical sectional view.

taken approximately on the plane indicated by the line II, II of Fig. 3.

Fig. 3 is a front elevational view of the heater, and

Fig. 4 is a view similar to Fig. 3,'but with the outer coverplate or grid removed.

Referring moreparticularly to the said drawings the numeral 5 indicates asuitable casing preferably formed of stamped sheet metal which may be cylindrical or in other desired shape in cross section, having a rear wall 6, in the approximate center of which is mounted an electric socket or receptacle 7, of the ordinary screw base type. 7 shown in Fig. 2 the said socket 7 projects through the rear wall 6 and the base 8 thereof receives the electrical conductors 9 through which electric current is supplied to the de vice. A cover member 10 is secured to the rear wall 6 as by the bolts 11 and houses the rear portion of the socket 7. the rear wall 12 of said cover member being provided with a suitable opening 13 in which is fitted an insulating bushing 14 through which passes a cable 7 receives an electrical resistance or heating As clearly 1928. Serial no. 274,881.

element of well-known form which comprises a porcelain'or other suitable refractorysupport 16 upon which is mounted a spiral re sistance wire 17 which is connected in the electrical circuitin the well-known manner;

Extending through the rear wall 6 of the casing-51's aplurality of studs or bolts 18 upon which is mounted one or more heat-conducting and radiating members 19. The said members 19 may be cast or stamped by means of suitable dies to provide a central solid portion 20 havinga central opening 21 to accommodate the resistance element and from the said central portion 20 a plurality of arms or spokes 22 radiate to an outer rim or ring .23, as clearly shown in Figs. ,2 and 4E. The central portion 20 of each member 19 is provided with a. plurality of lugs or projections 25 by means of which the said members 19 are maintained in spaced relation, as will be readily understood from Fig. 2. Nuts 26,

Theleft hand edge of the casing 5, as-

viewed in Fig. 2, is provided with an out wardly turned flan ge 28 to which is secured, as by the bolts 29. a cover member 30. This member, like the members 19, may be stamped or cast, being provided with suitable perforations 31,.through which air may circulate in the well known manner.

The device is adapted'for use either as a stationary or as a portable heater and when intended as the latter it may be provided with a suitable base 32 and a handle 33 by means of which latter it may be carried from place to place. When designed for use as a stationary heater the base and handle may be omitted and suitable lugs provided whereby it may be attached to studding or other portion of the wall within a suitable recess provided in such wall.

The apertures 21 formed in the heat-conducting members 19 are preferably of only slightly larger diameter than that of the electric resistance element so that there is only a small air space between the element 17 and the inner portions of the members 19. whereby heat from the resistance element may be known manner. Heat will also be transmitted to the members 19 through the bolts or studs 18 as well as by radiation to the casing 5 from which it will be reflected in the ma n nor of the ordinary heater of this ty Vfhile one form of the invention IIHLS been illustrated and described, it is obvious that those skilled in the art may vary the details of construction as well as the precise arrangement of parts without departing from the spirit of the invention and therefore it is not wished to be limited to the above disclosure except as may be required by the claims.

hat is claimed is:

1. In an electric heater, a casing; an electrical heating element mounted in said easing; and heateonducting and dissipating means comprising a perforated metallic plate mounted in said casing concentric with said element and in close proximity thereto, adaptied to readily transmit heat from said element to the surrounding atmosphere. I

2. In an electric heater, a casing; an electrical heating element mounted in said casing; and a plurality of axially spaced perforated heat conducting plates mounted in said easing concentric with said heating element and in close proximity thereto, adapted to readily transmit heat from said element to the surrounding atmosphere.

In a e t ic h ater, a a ing; electrical heating element mounted in said casing; plurality of axially spaced perforated metallic plates mounted in said casing concentric with said element and in close proximity thereto, adapted to readily transmit heat from said element to the surrounding atmosphere; and a perforated cover and guard plate secured .to said casing in front of said heating element. a

4. In an electric heater, a casing; an eleos trieal heating element mounted in said casing; a plurality of axially extending studs carried said casing around said heating element; and a plurality of perforated heat conducting and dissipating plates mounted on said studs, said plates being provided with lugs for maintaining adjacent plates in axially spaced relation.

In testimony whereof I aflix my signature.

GEORGE n GALLUP. 

